import tkinter as tk                                 #导入  
print(type(tk),tk.__package__,tk.__file__)           #检查三项
print(help(tk))                                      #求帮助
#%cd /Users/xingyongkang/anaconda2/envs/dgl/lib/python3.6/tkinter/ 查目录
#%ls -l

import tkinter.messagebox as tb
print(type(tb),tb.__package__,tb.__file__)
print(type(tk.constants),tk.constants.__package__,tk.constants.__file__)
